The precipitation water fee was introduced in Dresden, Germany in 1999 by the Dresden urban drainage utility company to reduce the amount of rainwater reaching its mixed sewage system and to decrease the amount of impervious surfaces on private properties. The fee for individual property owner's can be reduced by increasing the surface area for infiltration through nature-based solutions, including e.g. green roofs, collecting and using rainwater and property landscaping. The fee came as a response to the increasing strains on the city’s sewage system which have emerged as a consequence of climate change, including resultant droughts and heavy rainfalls. This comes in light of the immense investments the city has had to allocate for the protection of its wastewater facilities as a consequence of flooding. About 30% of the costs for the planning, operation and maintenance of the sewage system and wastewater treatment plants are caused by rainwater treatment.